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Expt_04

# Expt_04 - Lab-in-a-Box Experiment 4 Kirchhoff's Laws...

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Lab-in-a-Box Experiment 4: Kirchhoff’s Laws Name: ___Josh Haynes_________ Pledge: __ Josh Haynes ________ ID: _ __904321944__________ Date: _ __5/30/07____________ Procedure V 1 D C = 9 V R 1 8 . 2 k R 2 4 . 7 k R 3 1 0 k 0 C B A D Figure 1: Circuit for verifying Kirchhoff’s laws. Analysis: 1. Calculate AB V , DA V , DA I , 2 I and 3 I where I 2 and I 3 are the currents in R 2 and R 3 , respectively, as identified in Figure 1. Use the passive sign convention to determine the direction of positive current flow for 2 I and 3 I . AB V = 2.524 V DA V = 6.478 V DA I = .790 mA 2 I = .537 mA 3 I = .253 mA 2. Verify that DA 2 3 0 I I I - + + = . .790 = .537 + .253, yes 1 of 4

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3. Verify that CD DA AB 0 V V V + + = . (Note that CD s 1 V V V = = .) -9v + 6.478 + 2.524 = 9.002, the .002 is a rounding error. 4. Calculate the power dissipated in each resistor and the total power dissipated ( dis P ) in the circuit. Be sure to follow the passive sign convention. dis P = 7.12 mW 5. Calculate the power generated ( gen P ) by the source, s V . gen P = 7.11 mW, the .001 mW is another rounding error 6. Does the total power generated equal the total power dissipated?
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Expt_04 - Lab-in-a-Box Experiment 4 Kirchhoff's Laws...

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